Dutch Septic Tank, DST - without concrete!


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  • ande1978
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  • Independent Ecological Sanitation Consultant in Kenya
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Re: Dutch Septic Tank, DST - without concrete!

Thank you colleagues for the responses!

I want to attach a picture of the given plastic PVC solution - to share with you.

Actually, the company states that this solution must not be lined in a brick framework. Instead just to be positioned in the soil and covered. It will redirect greywater into a soak pit.
Ecological Sanitation Consultant
currently acting as Project Manager in Sanitation for "Offene Herzen e.V. - open hearts" in Chwele/Western Kenya

Master in Business Engineering
Longing for a detailed review of the UN MDG achievements after 2015 with rectifying post-MDG goals

Mobile: +254708617662
Location: Kiminini (Kitale), Kenya
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  • Marijn Zandee
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  • No longer working in WASH, but still following the forum.
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Re: Dutch Septic Tank, DST - without concrete!

Dear Andreas,

It seems the design you posted is a rigid plastic tank like structure, that can probably be installed underground without any lining of the pit, as you say. The start of this thread was another design, which is more like a plastic bag, for which some of us feel the pit should be lined with stones.

Two brief questions:
1.) Is the septic tank you posted made locally (in Kenya?)
2. How does it compare cost wise with a brick/concrete structure?


Marijn Zandee

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  • AquaVerde
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  • "simple" Sanitation-Solutions by gravity
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Re: Dutch Septic Tank, DST - without concrete!

Andreas, it looks to me more like typical PE-tanks...
"simple" Sanitation-Solutions by gravity
Low-Tech Solutions with High-Tech Effects
"Inspired by Circular Economy and Cooperation"
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